VERT / GREEN
Identify the system, document its condition and keep drainage/exterior details accessible where possible.
Permanent wood foundation (PWF)
Recognize a preservative-treated wood foundation and check drainage, membranes, fasteners, moisture and alterations before opening or backfilling.
JAUNE / YELLOW
A PWF is an engineered system: membrane, granular drainage, treated wood and structural details work together.
ROUGE / RED
Soft/decayed wood, persistent leakage, structural alteration or compromised membrane/drainage: expert assessment required.
Interactive triage
This triage helps choose the next step; it does not replace design, permitting or professional diagnosis.
Useful tools and data
- PWF plans/data
- Moisture meter
- Membrane/drainage photos
What the professional checks
- Confirm system compliance
- Assess structure and moisture
- Detail compatible repair
Official sources
Checked 2026-08-22.
Related path
Continue with the right tools
These links connect this page to the next useful checks and decisions without repeating the full content.
Plan a complete construction projectConnect feasibility, design, permits, concealed work, commissioning and closeout.Open →Check permit triggersPrepare the questions and documents to confirm with the local authority.Open →Check a contractorDocument licence, insurance, scope, payments, changes and warranties.Open →Update a construction costEscalate a historical cost using comparable index values.Open →Prepare pre-delivery reviewRecord documents, enclosure, systems, finishes and deficiencies before closeout.Open →
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